StripsPerImage is not a field. It is merely a value that a TIFF reader will want to compute because it
specifies the number of StripOffsets and StripByteCounts for the image.

Note that either SHORT or LONG values can be used to specify RowsPerStrip. SHORT values may be used for small
TIFF files. It should be noted, however, that earlier TIFF specification revisions required LONG values and
that some software may not accept SHORT values.

The default is 2**32 - 1, which is effectively infinity. That is, the entire image is one strip. Use of a
single strip is not recommended. Choose RowsPerStrip such that each strip is about 8K bytes, even if the data
is not compressed, since it makes buffering simpler for readers. The 8K value is fairly arbitrary, but seems
to work well.